Boiler-feeder.



no. 693,296. Patented Apr. 22,1902;

H. G. LAncom. BOILER FEEDER.

(Application led May 15. 1901.) (-llo Model.) 2 Sheets--Sheet 2.

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PATENT 'HARRY' LARcoivnoF nnwrvorni, N.r

BollLER-FEEDER.

srncrnrcarrolvrermmg m of Leners Patent No. eeeeeedateanprnaa, reca? y'ff Application led May l5, 1901.

yThis invention relates foau apparatus for feeding boilersv in which thesteam-pressure of the boiler is transmitted 'to the feeder andthe Watervallowed tojfall byvg'ravityv into the boiler. Thisspecicationfis aspecific description of one form'of my invention, while the claims varedefinitions of the actual scopethereof.

. Reference is to be had tothe accompanying y zo . of the same.

The outer casing a' of the devicel has four branches, (designated vval,a2, a3, and a4, respectively,) these branches leading into the casingeachy by means of a number of openings c. According to the constructionhere shown each series of openings 0.5 iscomposed of four, openings.With the branchdcommunicates a pipe b, leading steamv from. the boiler.With the branch @communicates a vpipe c, leading feed-water from avpump'of any sort, which pump is conventionallyfillustrated at d in Fig.l. From thelbranchu,3 leads a pipe e, carrying the feed-water to theboiler, and from the branch a4 leads apipe f, carrying thewater-overliow back to the source of feed-water supply. The casing a ista' pered, as indicated best in Fig. 2, and .within this casingrevolubly fits a correspondinglytapered barrel g. 'This barrel has itslargev 'end fit-ted with a screw-cap g','which closes the end of thebarrel and which also carries a stud g2, passing through a stuffing-boxin the end of the casing a andcarrying'iixedly a ratchet-wheel h. .Viththis ratchet-wheel 7L works a pawl 71,', carried on an elbow-lever Fig.L is an elevational view of the'` semina 60.330.A ons modem i axis ofthe stud g2. 'The elbow-lever h2 is rocked throughthe action of a leverhful-V crumed on anarm a, carried bythe casing- The lever h3 is'suitablyconnected with thel hthe fulcrum of which coincides with the pump el orwith any other source of motion, so-

astoimpartarockingactiontotheleverland 6.olthusimpartingastep-by-step'movementtothe 5 drive the pawl 72,- againsttheratehetfwheel h,

barrel g. This barrel, as bestshown in Figs'.

lSande, is provided .witha number yof-.pairs ofl .transversely-aimedopenings g3. These` .j

ywith the number of openingsineachseriesa5 .f ofthe casing a,andi-here'fore'inthepresent'- --j 1 instance there are four pairs yofopen'ingfsg?. v Each pair of openings ygiisin transversealine-,

pairs of openings e g3A ,correspond in number .ment with oneopcningfofeach .series "of" of ythe casing a, asis gbestillus'trated'in'Figs. i2' and 3. Within the barrel g and tapered to 1f k.conform tothefshap'e `thereof is'an interior' barrel i, which is provided withYthree'partil tions' 2l', dividing "the barrel into` fourY com-7partments.y The larger end ofthe barrel is closed by the'cap g', and thesmallerend of Y r' carried on the casing@ and pressed by a spring 4, by.means of which spring thev barrel f1, is

vthe barrel' is'closedby a cap r2v'vhic'l1-hasl 5, i a square stem aprojected into aV chamber a',

held snugly engaged with the barrel g.A The barrel il is provided withfour series of open'.`

ings '5.- The members of these series offopenf.A

ings are each arranged inflongitudinal alinementf, and the series ofopenings are disposed 'j i equi'distantaround.thecircumference.of thebarrel. l

The parts beingy constructed andarranged i as shown and the pump beingin operation', the barrel g will be driven with anin'termitvtent'turning:movementwithin 'the'\ca"sin `g.ct. By adjusting theconnection between the parts h2 and h3 theniovement of the barrel gA imay be regulated. Referring now to Fig. 3,

it will be seen that the barrel g isin such p'O- si'tion asv will placethe-pipes band e in com-j i :i munication with each other 'through oneof 'l i the four compartments of the Vinterior barrel v i. Assuming thatwater is within thiscompartment of the barrel fi, the steam-pressure vofthe boiler will be communicated to this compartment of the barrel i, andthe water `will fiow by gravity intoA the `boiler through,y

the pipe e. The barrel g now continues its movement, and the openingsg3, Which are shown in Fig. 3, will then be placed in communication withthe openings a5, leading to the pipes c and f. The water from the pumpwill now iiow into the before-referred-to compartment of the barrel z`and fill this com partinent. The barrel g then continues its movementand returns to the position shown in Fig. 3, whereupon theabove-described operation is repeated. This accounts for the operationwhich goes on Within one of the four compartmenfsoftheinteriorbarrel.Itshould be understood, of' course, that all of the other compartmentsare operating in the same Way in succession. This successive, andtherefore practically continuous, action is brought about by the spiraldisposition of the pairs of openings g3 in the barrel g. rlhese fourpairs of openings are quartered around the barrel, and as the barrelmoves in its action it brings each pair of openings rapidly intosuccessive action. The desired height of the Water in the boiler may beregulated by the elevation of the feeder, and when the water in thebottom reaches an elevation equal to the elevation in the casing a, thefeeding action will cease, since the feeder operates by force of'gravity, and the Water will not be forced into the boiler at anelevation higher than the elevation of the top side of the barrel t'.Should the boiler be full, the water will simply be forced by the pumpfrom the pipe cinto the pipej" and back to the source.

Having thus described my invention, I claim as new and desire tosecureby Letters Patentl., Aboiler-f'eeder, comprising a casing havingorifices respectively in communication with the feed-water supply, theboiler-supply and the boilersteam-pressu re, an orificed barrel arrangedto turn in the casing and to command the orifices' thereof, and astationary barrel arranged in the first-named barrel and orificed inconformity with the orifices in the casing.

2. A boiler-feeder, comprising a casing having orifices respectively incommunication with the feed-Water supply, the boiler-supply, and theboilersteam-pressure, an orificed barrel arranged to turn in the casing,and a second orificed barrel stationary within the firstnamed barrel andhaving its orifices in conformity with the orifices in the casing, saidsecond barrel having partitions forming it into separate compartments,for the purpose specified.

3. A boiler-feeder, haviuga casing adapted to communicate with thefeed-Water supply, the boiler steam-pressure and the boiler-feed, abarrel arranged to turn in the casing and having orifices communicatingalternately with the feed-water supply, the boiler-pressure and theboiler-feed, said barrel having the orifices therein arranged spirallyaround it for the purpose specified, and a second barrel held stationaryWithin the first barrel and having openings commanded by the movingbarrel, such openings of the stationary barrel being respectivelyrelated with the feedwater supply, the boiler-supply and the boilersteam-pressure.

4. A boiler-feeder having a casing, adapted to communicate with thefeed-Water supply, the boiler steam-pressure and the boiler-feed, abarrel arranged to turn in the casing, and having orifices communicatingalternately with the feed-water supply, the boiler-pressure and theboiler-feed, said barrel having orifices therein arrangedv spirallyaround it for the purpose specified, and a second barrel held stationaryWithin the first barrel, and having openings covered and uncovered bythe first barrel, such openings of. the second barrel being respectivelyrelated to the feed- Water supply, the boiler-supply and the boilersteam-pressure,and transverse partitions fastened in the second barreland between the openings thereof.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

HARRY G. LARCOM.

Witnesses:

I. B. OWENS, D. C. LARCOM.

